AM7968 AMD [Advanced Micro Devices], AM7968 Datasheet - Page 60

• Manufacturer Part Number: AM7968
• Description: TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface)
• Manufacturer: AMD [Advanced Micro Devices]

56
AMD
9-Bit Mode
10-Bit Mode
Notes:
1. Command pattern Sync cannot be explicitly sent by Am7968 Transmitter with any combination of inputs
2. A strobe with all Os on the Command input lines will cause Data to be sent. See Table 3-1.
3. While these Commands are legal data and will not disrupt normal operation if used occasionally, they
8-Bit Mode
A (Note 3)
D (Note 3)
E (Note 3)
8 (Note 3)
F (Note 3)
and STRB, but is used to pad between user data.
may cause data errors if grouped into recurrent fields. Normal PLL operation cannot be guaranteed if
one or more of these Commands is continuously repeated.
No STRB
No STRB
No STRB
(Note 1)
(Note 1)
(Note 1)
Command Input
HEX
C
B
0
1
2
3
4
5
6
7
9
0
1
2
3
4
5
6
7
0
1
2
3
TAXIchip Integrated Circuits Technical Manual
No STRB
No STRB
No STRB
(Note 1)
(Note 1)
(Note 1)
Binary
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
000
001
010
011
100
101
110
111
00
01
10
11
Am7968 Transmitter
XXXXXX XXXXXX
XXXXXX XXXXX
XXXXX XXXXX
011000 100011
111111 111111
011101 011101
011101 111001
011000 10001
111111 11111
011101 01101
011101 11001
111111 00100
011101 00111
111001 00111
111001 11001
00000 00000
11000 10001
11111 11111
01101 01101
01101 11001
11111 00100
01101 00111
11001 00111
11001 11001
00100 00100
00100 11111
00100 00000
00111 00111
00111 11001
00000 00100
00000 11111
Encoded
Symbol
LM (10-bit Sync)
JK (8-bit Sync)
LK (9-bit Sync)
Mnemonic
Data
Data
Data
S’R
T’T’
T’S’
HQ
QH
QQ
T’S
T’R
S’S
SR
HH
RR
RS
T’T
TS
I H
TR
SS
Q I
I’I ’
I I
TT
HI
I’H
I’I
No Change
No Change
No Change
(Note 2)
(Note 2)
(Note 2)
Command Output
HEX
Am7969 Receiver
C
D
A
B
E
F
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
0
1
2
3
No Change
No Change
No Change
(Note 2)
(Note 2)
(Note 2)
Binary
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
000
001
010
011
100
101
110
111
00
01
10
11